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Treatment of a simulated wastewater amended with a chiral pharmaceuticals mixture by an aerobic granular sludge sequencing batch reactor

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dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorMoreira, Irina S.
dc.contributor.authorRibeiro, Ana R.
dc.contributor.authorSantos, Lúcia H.M.L.M.
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorTiritan, Maria Elizabeth
dc.contributor.authorCastro, Paula M.L.
dc.date.accessioned2017-01-12T11:20:22Z
dc.date.embargo2116
dc.date.issued2016
dc.description.abstractAn aerobic granular sludge-sequencing batch reactor (AGS-SBR) was fed for 28-days with a simulated wastewater containing a mixture of chiral pharmaceuticals (CPs) (alprenolol, bisoprolol, metoprolol, propranolol, venlafaxine, salbutamol, fluoxetine and norfluoxetine), each at 1.3 mg L 1. AGS-SBR exhibited the highest removal efficiency for norfluoxetine, with preferential removal of the (R)-enantiomer indicating that biological-mediated processes occurred. For all other CPs, removal was non-enantioselective, occurring through biosorption onto AGS. A gradual decline of CPs removal was observed, probably related to the decrease of AGS adsorption capacity. Moreover, chemical oxygen demand (COD) content in the bulk liquid after anaerobic feeding increased, and P-release dropped, probably because the polyphosphate-accumulating organism's activity was affected. Nitrification was also affected as indicated by the ammonium effluent concentration increase. Moreover, CPs exposure promoted AGS disintegration, with decreasing granule size. After stopping CPs feeding, the AGS started to recover its compact structure, and the system returned its normal performance concerning COD- and P-removal. N-removal seemed to be a more sensitive process, as while the ammonium levels were fully restored at the end of operation, nitrite reduction was only partially restored. Results provide useful information on AGS performance during the treatment of wastewater containing pharmaceuticals, a frequent scenario in WWTP.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ibiod.2016.09.009pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/9235
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.ispartofseriesInternational Biodeterioration & Biodegradation;Vol. 115
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0964830516303699pt_PT
dc.subjectAerobic granular sludgept_PT
dc.subjectChiral pharmaceuticalspt_PT
dc.subjectEnantiomerspt_PT
dc.subjectNutrients removalpt_PT
dc.subjectGranular morphologypt_PT
dc.titleTreatment of a simulated wastewater amended with a chiral pharmaceuticals mixture by an aerobic granular sludge sequencing batch reactorpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage285pt_PT
oaire.citation.startPage277pt_PT
oaire.citation.titleInternational Biodeterioration and Biodegradationpt_PT
oaire.citation.volume115pt_PT
person.familyNameDelerue-Matos
person.givenNameCristina
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id6603741848
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication.latestForDiscovery09f6a7bd-2f15-42b0-adc5-04bd22210519

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